The graph of y = f(x) passes through the point (9,4). Also, the line tangent to the graph at any point (x, y) has the slope of 3vx. What is the equation of f ? 3 3 у %3D 9х2 + 4 у %3D Зх2 — 50 - 3 y = 2x2 + 50 у %3D 2х2 — 50 Ов O A

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